859821-79-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859821-79-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,8,2 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 859821-79:
(8*8)+(7*5)+(6*9)+(5*8)+(4*2)+(3*1)+(2*7)+(1*9)=227
227 % 10 = 7
So 859821-79-7 is a valid CAS Registry Number.